The Following Data Are Available for a Simple Linear Regression

Multiple Choice

The following data are available for a simple linear regression analysis attempting to link hours of training (x) to hourly output (y) . In applying the least squares criterion, the slope (b) and the intercept (a) for the best-fitting line are b = 2.4 and a = 3.6.Produce the 90% confidence interval estimate of the population slope, β.Report the upper bound for your interval.

A) 6.86
B) 8.29
C) 4.42
D) 5.71
E) 3.90